抄録
Dredged clay in land reclamation undergoes finite strain and considerable change in permeability and compressibility. Realistic predictions of consolidation behaviour of soft to extremely soft clay can be achieved using a finite strain formulation with varying permeability and compressibility instead of conventional Terzaghi's small strain theory. Such a formulation is developed using a theory which couples the interaction of solid and fluid. The material non-linearity is incorporated by piece-wise linear e-log σ' and e-log k relationships. The effect of initial void ratio profile on the settlement and pore pressure behavior is investigated. The significance of finite strain analysis is highlighted through two case studies associated with reclamation projects. Predictions by the proposed method of analysis compare well with field results in terms of settlement and void ratio distribution.
